Bookbinder



N. DUPUIS.

BOOKBINDER.

APPLICATION FILED Nov. I7. I9I9.

Patented Feb. 17,1920.

429- 4 No@ z IIIIIIIIIIII I InmuumInIIuIHIIIHIIIIIInIHInIuIuIuUInInIIMImhHINMIHHIHIImwnwwwnuunnmullunnwlmhumuhlnwm UNITED sTATEs PATENT oEEioE.

NOEL DUPUIS, OF OLYMPIA, WASHINGTON .Y

BOOKBINDER.

Application filed November 17, 1919.

T 0 all Iwhom it' may concern:

Be it known that I, NOEL DUPUIS, a citizen of the United States,residing at Olympia, in the county of Thurston and State of IVashington,have invented a new and useful Bookbinder, of which the following is a-specilication.

The device forming the subject mattei' of this application is aprotector for the binding of a book, and one object of the invention isto provide a structure of the sort alluded to which may be adaptedreadily to books of different sizes. Another object of the invention isto provide novel means for holding the device on a book. A furtherobject of the invention is to provide novel means for holding thestructure at a predetermined length, so that the book engaging elementsmay be effective.

It is within the province of the disclosure to improve generally and toenhance the utility of devices of that type to which the invent-ionappertains.

With the above and other ob-jects in view, which will appear as thedescription proceeds, the invention resides in the co-mbination andarrangement of parts and in the details Iof construction hereinafterdescribed and claimed, it being understood that, within the scope ofwhat is claimed, changes in the precise embodiment of the inventionshown can be made without departing from the spirit of the invention.

In the accompanying drawings Figure l shows in end elevation, a deviceconstructed in accordance with the invention; Fig. 2 is a transversesection; Fig. 3 is a side elevation of the protector, the line 2 2, inFig. 3 indicating the cutting plane on which Fig. 2 is taken; and Fig. 4shows in perspective, a book to which the device forming the subjectmatter of this application has been applied.

In carrying out the invention there is provided an outer trough shapedmember 6 and an inner trough shaped member 7, each having an outer endwall 9 provided with pins or projections 10 extending parallel Ito themembers 6 and 7, the pins constituting book engaging elements. 'Thelongitudinal edges of the outer trough shaped member 6 are Speccation ofLetters Patent.

Patented Feb. 17, 1920.

Serial No. 338,414.

turned over to form guides 8, the longitudinal edges of the inner troughshaped member 7 being turned over to form reinforcements l5 slidablyreceived in the guides 8. The trough shaped member 6 is provided with aslot 11 in which operates a cam lever 12 adapted to bear against theinner trough shaped member 7. The numeral 16 denotes any suitable meansfor pivotally mounting the cam lever 12 intermediate its ends on theouter trough shaped member 6.

In practical operation, the structure is elongated and then shortened,the pins l() being engaged between the leaves of a book 5, or beingengaged with some other part of the book, adjacent to the bindingthereof. The cam lever 12 may be manipulated to prevent relative slidingmovement between the members 6 and 7, and, thus, sincethe device cannotelongate, the pins 10 remain engaged with the book.

Having thus described the invention, what is claimed is 1. A protectorfor the binding of a book, comprising a pair of trough shaped membershaving end walls, the members being slidably interengaged forlongitudinal adjustment; means for holding said members releasablyagainst sliding movement; and projections carried by the end walls anddisposedv approximately parallel to said members.

2. A protector for the binding of a book, comprising inner and outertrough shaped members, the outer member being provided along itslongitudinal edges with guides, and the longitudinal edges of the innermember being slidably received within the guides, the said membershaving end walls; projections carried 'by the end Walls and disposedsubstantially parallel to the said members; and a cam lever fulcrumed onthe outer member and engaging the inner member.

In testimony that I claim the foregoing as my own, I have hereto aiXedmy signature in the presence of two witnesses.

NOEL DUPUIS.

Witnesses:

ELsrE SNIDER ABSHER, B. P. KUNKLER.

